632435540 has 36 divisors (see below), whose sum is σ = 1459834068. Its totient is φ = 229975680.

The previous prime is 632435533. The next prime is 632435543. The reversal of 632435540 is 45534236.

It can be written as a sum of positive squares in 2 ways, for example, as 129868816 + 502566724 = 11396^2 + 22418^2 .

It is a junction number, because it is equal to n+sod(n) for n = 632435497 and 632435506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632435543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128249 + ... + 133088.

Almost surely, 2^632435540 is an apocalyptic number.

It is an amenable number.

632435540 is an abundant number, since it is smaller than the sum of its proper divisors (827398528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

632435540 is a wasteful number, since it uses less digits than its factorization.

632435540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261368 (or 261355 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 632435540 is about 25148.2711135378. The cubic root of 632435540 is about 858.3651743825.

Adding to 632435540 its reverse (45534236), we get a palindrome (677969776).

The spelling of 632435540 in words is "six hundred thirty-two million, four hundred thirty-five thousand, five hundred forty".